Mechanical movement.



W. C. BAXTER.

MECHANICAL MOVEMENT.

APPLICATION FILED NOV. 21. I915.

1,%92.565. Patented Jan. 28,1919.

3 SHEETSSHEEI I.

1n: noun: n-rnu on. rn'uinurua. vusumu'wn. n c.

w. c. BAXTE B. MECHANICAL MOVEMENT.

APPLICATION FILED NOV. 27. I915.

Patented Jan. 28, 1919.

3 SHEETSSHEET 2.

.Ziawa M (7&2:

Pl/ifizesa: 7M zdz//am W. C. BAXTER.

MECHANICAL MOVEMENT.

APPLICATION FILED NOV. 27. 1915.

1,292,565. Patented Jan. 28, 1919.

3 SHEETSSHEET 3.

m: m! m.- a, main-mum. IlrAsumnrou, a e.

T ears ENI @FFIQE.

WILLIAM C. BAXTER, 0F BEVERLY, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGN-MENTS, TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY,

A. CORPORATION OF NEW JERSEY.

MECHANICAL MOVEMENT.

Specification of Letters Patent.

Patented Jan. 28, 1919.

Original application filed February 24, 1913, Serial No. 750,326.Divided and this application filed November To all whom it may concern:

Be it known that I, WILLIAM C. BAXTER, a citizen of the United States,residing at Beverly, in the county of Essex and State of Massachusetts,have invented certain new and useful Improvements in MechanicalMovements; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

The present invention relates to mechanical movements and moreparticularly to mechanism for converting rotary into reciprocatorymotion, or vice versa.

The object of the present invention is to provide an improved mechanismfor converting rotary into reciprocatory motion which is adjustableduring the operation of the machine to vary the extent of thereciprocatary motion, and which imparts a plurality of reciprocations tothe driven member for each complete rotation of the driving shaft.

With this object in view a feature of the invention contemplates theprovision of a pair of rotary members positioned eccentric to oneanother, means for rotating one of the members, and a floating memberintersist in certain novel features of construction,

posed between the two first mentioned members and operatively connectedwith both members to lock all of the members against relative rotationwhile permitting a relative reciprocatory movement of the floatingmember.

A further feature of the invention consists in the combination of adriving member, means for rotating the drivlng member, a

nections disposed at right angles between opposite faces of the floatingmember and the driving and controlling members.

Still further features of the invention concombinations and arrangementsof parts here- .inafter described and claimed, the advantages of whichwill be obvious to those skilled in the art from the followingdescription.

In the accompanying drawings illustratingthe preferred form of theinvention;

Serial No. 63,853.

Figure 1 is a plan view partly in section of the improved mechanism;Fig. 2 is a side elevation of the mechanism shown in Fig. 1; F ig. 3, isa detail illustrating an elevation of the floating disk showing therelative location of the opposite spline connections; Fig. 4: is adetail showing a section in ele- Vation of the floating disk with thecooperating disks indicated in dotted outline; Fig. 5 is a detailshowing a side elevation of the severahdisks linked together; Fig. 6 isa detail showing a cross section of the disksin the relative positionsillustrated in Fig. 5; Fig. 7 is a plan view illustrating the embodimentof the improved mechanism in a sole leveling machine having a pair ofleveling rolls; and Figs. 8 to 11, inclusive, are de tails illustratingthe position of the floating disk during each quarter turn of thedriving shaft. In the illustrated embodiment of the invention shown inthe drawings this mechanism comprises a pair of cooperating rotarymembers which are supported eccentric to one another, means for rotatingone of the members, and a floating member interposed between the twofirst mentioned members and operatively connected with both members tolock all of the members against relative rotation while permitting arelative reciprocatory movement of the floating member. In the simplestand most efiicient form of the invention which has yet been devised adriving disk is secured to a driving shaft and a second or controllingdisk, as it may be termed, is positioned eccentric to the driving diskand is adjustable relative thereto. A floating disk is interposedbetween the two first mentioned disks and is connected with both disksthrough tongue and groove connections disposed at right angles andconnecting opposite faces of the floating disk with thedrivingandcontrolling disks, respectively. WVith this construc. tion the extentof vibratory movement imparted to the floating disk is'determined by theeccentricity of the controlling disk with relation to the driving disk.the rotation of the driving disk causing the floating disk 4 drivingdisk 3 secured thereto. A. control- .4-

ling disk 5 has an extended hub 6 journaled in bearings formed in a head7 and provided with. an enlarged bore 8 to permit an adjustment of thedisk relative to the driving shaft 1. The disks 3 and 5 are spaced fromone another and a floating disk 10 is interposed between the two disksand is locked against rotation relative to the disks through tongue andgroove connections indicated respectively at 12'an'd 13. The drivingconnections with opposite faces of the disk 10 eX tend at right anglesand when the driving disk is-rotated' impart a reciprocatory motion tothe floating disk 10 through the joint action of the driving disk 3 andcontrolling disk 5. The motion imparted to the controlling disk causestwo complete reciprocations of the disk and driven member connectedtherewith for each rotation of the shaft, as will be obvious from aninspection of Figs. 8 tell, inclusive. Referring to these figures itwill be noted: that during the first quarter turn of the driving shaftthe tongue and groove connection 12 between the disks 5 and 10 is turnedfrom a horizontal into a verticalposition, causing a movement of thefloating disk to its most advanced position, during the second quarterturn the connection 13 between the disks 3 and 10 is moved into avertical position, retracting the floating disk to its initial positionand during the third and fourth quarter turns of the shaft the precedingcycle of operations is repeated. It will be seen from the above that theextent of the. reeiprocatory movement imparted to the floating disk isequal to the distance between the axes of the disks 3, 5, and that byvarying the spaced relation of the axes a predetermined amount theextent of the reciprocatory movement may be accordingly varied.

The illustrated embodiment of the invention is conveniently shown inconnection with the machine disclosed in the U. S. patent to Baxter No.1,208,895, dated December 19, 1916-, and from which the presentapplication is divided. This machine has twin operating tools indicatedat 15, each of which is connected with its respective vibratingmechanism through a yoke 16, connecting rod 1'7, slide 18, and a pitman19 having a strap 20 received in a peripheral groove 21 formed in thefloating disk 10. It will-be noted from an inspection of Fig. 7 thatboth of the driven members are reciprocated from a common drive shaft 1and in order to simultaneously adjust the extent of movement of both ofthe driven members the head 7 is provided with oppositely disposedbearings which receive two controlling disks 5. The head 7 is slidinglysupported in guideways 23' formed in the frame and is provided with anupstanding projection 22 which threadedly receives the end of anadjusting rod 24. The adjusting rod 24: is

j ournaled and held against lengthwise movement in a bearing 25 and atits forward end is provided with a hand wheel 26 conveniently accessibleto the operator. In order to limit the extent of movement of the head 7the adjusting rod 24: is provided with a pair of collars 28 arrangedupon opposite sides of the member 22 to limit the movement of theadjusting rod with relation to the member.

While it is preferred to employ the specific construction andarrangement of parts shown and described, it will be understood. thatthis construction and arrangement is not essential except so far asspecified in the claims, and may be changed or modified withoutdeparting from the broader features of the invention.

The invention havingbeen described, what is claimed is:

1. A mechanism for converting rotary into reciprocatory motion,comprising a pair of rotary members positioned eccentric to one another,means for rotating one of the-members, a floating member interposedbetween the two first mentioned members and? operatively connected withboth members: to look all of the members against relative rotation whilepermitting a relative reciprocatory movement of the floating member, adriven member, and connections for reciprocating the driven member fromthe floating member.

2. A mechanism for converting rotary into reciprocatory motion,comprising a pair of rotary members positioned eccentric toone another,means for rotating one of the memhere, means for varying theeccentricity of the two members, a floating member interposed betweenthe two first mentioned membersand operatively connected with bothmembers to look all of the members against a relative rotation whilepermitting a relative reciprocatory movement of thefloating member, adriven member, and connections for reciprocating the driven member fromthe floating member.

3. Amechanism for converting-rotary into reciprocatory motion,comprising a pair of rotary disks positioned eccentric to one another,means for rotating one of the disks, a floating disk interposed betweenthe two first mentioned disks and having tongue groove connectionsdisposed at right angles and connecting opposite faces of the floatingdisk with the driving and controlling disks, respectively, a drivenmember, and connections for reciprocating the driven member from thefloating disk,

4. A mechanism for converting rotary'into reciprocatory motion,comprising a pair of rotary disks positioned eccentric to one another,means for rotating one of the disks, 2. floating disk interposed betweenthe two first mentioned disks and having tongue and groove connectionsdisposed at right angles and connecting opposite faces of the floatingdisk with the driving and controlling disks, respectively, a drivenmember, and connections between the floating disk and driven member.

5. Amechanism for converting rotary into reciprocatory motion,comprising a driving member, means for rotating the driving member, acontrolling member positioned eccentric to the driving member, means foradjusting the controlling member to vary the eccentricity of thecontrolling member with relation to the driving member, a floatingmember interposed between the two first mentioned members, connectionsbetween the opposite faces of the floating member and the driving andcontrolling members to lock all of the members against relative rotationwhile permitting relative reciprocatory movements of the floatingmember, a driven member, and connections between the floating member anddriven member to reciprocate the driven member. a

6. A mechanism for converting rotary into reciprocatory motion,comprising a driving shaft, a driving disk secured to the shaft, a headadjustable transversely of the shaft,

Copies of this patent may be obtained for five cents each, by addressingthe a controlling disk journaled in the head, and a floating diskinterposed between the driving and controlling disks and having tongueand groove driving connections with the disks.

7. A mechanism for converting rotary into reciprocatory motion,comprising a driving disk, a head adjustable transversely of the drivingdisk, an adjusting rod threadedly connected with the head, a controllingdisk journaled in the head, and a floating d1skinterposed between thecontrolling and driving disks and having tongue and groove drivingconnections with both disks.

8. Amechanism for converting rotary into reciprocatory motion,comprising'a driving disk, a controlling disk supported eccentric to thedriving disk, a floating disk interposed between the controlling anddriving disks and operatively connected with both disks to look all ofthe disks against relative rotation while permitting a relativereciprocatory movement of the floating disk, a driven member, and astrap surrounding the periphery of the floating disk and connected withthe driven member.

WILLIAM C. BAXTER.

"Commissioner of Patents,

Washington, D. 0.

